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CM23 4

Postcode sector

231 live postcodes, all in East Hertfordshire.

A postcode has no figures of its own: each layer is published for whole councils, neighbourhoods or exact points. The figures below are for the whole of East Hertfordshire. Open the map at CM23 4 for neighbourhoods and points. Open the map at CM23 4

Your MP

As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

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Deprivation by neighbourhood

English Indices of Deprivation 2025

Most deprived 10%Least

0 of East Hertfordshire’s 90 neighbourhoods are in England’s most deprived 20%.

East Hertfordshire, the council that holds 100% of CM23 4

Average house price
£457,417
Up 3.7% in a year
HM Land Registry · Jul 2026
Median full-time pay
£52,184
8th highest paid of 348
ONS earnings survey · 2025
House price to pay
8.8×
96th least affordable of 348
Worked out by Open Index
Deprivation score
9.8
19th least deprived of 296
MHCLG · England only

Everything about East Hertfordshire

Postcodes in CM23 4